Depth control of slender body running under complicated hydrodynamic disturbance

Zhi Yu Shao*, Jiang Nan Bian, Shun Shan Feng, Dong Yang Fang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Slender body propelled by pump-jet, which runs near free-surface of the water, is subject to complicated disturbance including wave disturbance and propulsion disturbance. The effects of these disturbance on stability and precision of the slender body's depth control system are remarkable. In order to improve the control quality, a kind of fuzzy controller was designed to adjust the depth control system after dynamic model of the depth channel of slender body was created. Taking one kind of small slender body navigating near free-surface propelled by pump-jet as control object, hardware-in-loop simulation was introduced to compare the control results of the fuzzy depth control method with the classical dual-loop control method. The simulation results show that the fuzzy depth control method has higher control precision, and offers a feasible way to research the depth control of slender body navigating near free-surface propelled by pump-jet.

Original languageEnglish
Pages (from-to)83-87
Number of pages5
JournalDandao Xuebao/Journal of Ballistics
Volume24
Issue number1
Publication statusPublished - Mar 2012

Keywords

  • Fuzzy depth control
  • Hardware-in-loop simulation
  • Pump-jet
  • Slender body

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